关键词: 参数估计 极大似然法 进化策略

Abstract:

Using the maximum likelihood method to carry on parameter estimation is to avoid the traditional optimization algofithms＇shortcomings. This article u  ses the evolutional strategy algorithm and the maximum likelihood parameter estima- tion method for parameter estimation not to be affected by the initi al value, but obtain a globally optimal solutiorL Finally pa- rameter estimation is carried out based on the Weibulls＇three parameter distribution. The results indicate this method has the merits of high solution precision and fast convergence speed, and the evolution strategy algorithm can be better   applied in mathematical statistics

Key words: （parameter estimation;maximum likelihood method, evolution strategies）